 | | Journal (article/letter/editorial) | | The gemmy, intense purple apatites from this pegmatite mine have made Pulsifer the premier locality for...County, Massachusetts. Rather than a granite pegmatite, the geological environment in which this specimen...of albite, calcite, epidote, muscovite, quartz, titanite, chabazite, and stilbite. Another important occurrence...Dara-i-Pech pegmatite field, Kunar Province; Mawi pegmatite, Nilaw-Kolum pegmatite field, Nuristan...sedimentary exhalative Pb-Zn-(Ag) deposit Granitic pegmatite Hydrothermal Sn-W deposit Austria Kar Alp area |  | | Journal (article/letter/editorial) | | MINERALOGY OF AN EVOLVED DICKINSON COUNTY, MICHIGAN, PEGMATITE. T. W. Buchholz1, A. U. Falster 2, W. B. Simmons2...(1961) documented approximately ninety known pegmatite occurrences in central Dickinson County in the...Upper Peninsula of Michigan. A small beryl-rich pegmatite was investigated to describe its mineralogy and...determine its degree of geochemical evolution. The pegmatite is emplaced in Lower Proterozoic metamorphic rocks...probable that the pegmatite is late- to post-Penokean in age. Local control for pegmatite emplacement appears |  | | Book | | Roland Bouhelier in 1973 from the "Bouhelier pegmatite", and shortly thereafter acquired by the Canadian...Organic compounds 491 Partially studied and unnamed MSH minerals 494 Gemstones 514 Pseudomorphs...an accumulated repository of partially studied (unnamed) minerals. This is likely to continue for many...and partially studied and unnamed (UK) minerals. For the unresolved unnamed minerals, all available technical...named Monteregie is now the current name of the region. he name Mont Saint-Hilaire is used interchangeably |  | | Book | | localities for good ilmenite crystals exist in the region (Brunet, I 977b ). NEW YORK Amity, Orange County...and Edenville, large, fine crystals of spine!, titanite, amphibole and pyroxene have been found since...combinations of rutile, anatase, brookite, hematite and titanite (Philippe Beiley, personal communication, 2010)...in Switzerland, it is only in the Maderanertal region of east-central Canton Uri that clefts bearing...clefts are found fairly commonly throughout this region, such that only a handful of notable finds during |  | | Journal (issue) | | but Espenshade (1954) identifies it as a short unnamed inclined adit accompanied by a small dump about...Argentina. Ahlfeld surveyed the mineral deposits of the region and published a book on the mineralogy of Argentina...man in this very steep and remote sub-tropical region. Figure 1. Friedrich Ahlfeld as a young man. Photo...Kempff National Park in eastern Bolivia. This remote region was discovered by the legendary British explorer...new sulphostannate]. (1926) Los minerales de la region metalifera de la cordillera del norte, Bolivia |  | | Journal (volume) | | INSIDE THIS ISSUE: • The geology of Double Rock pegmatite • The Kemble family, long-term Franklin mineral...Photos From the Field 11 Geology of Double Rock Pegmatite From the Buckwheat Open Cut, Richard A.Volkert...crystals, epidote crystal druses, stromatolites, pegmatite with a pink scapolite/ diopside mix, and sparkly...corundum, spinel, graphite, pyrite, fluorite, titanite, etc., of past field trips. The now-abandoned...International License. Geology of Double Rock Pegmatite From the Buckwheat Open Cut Richard A. Volkert |  | | Book (volume) | | California, is arguably the most important gem-pegmatite district in North America. Its wealth of tourmalines...rule is usually true only for special items from a region. The common minerals are not usually thus affected...specimens sell for a premium is that visitors to a region seldom arrive when the supply of minerals is being...Mine in Topsham: both are small open pits in pegmatite. Morrill et al. (l 958) relieves the problem by...standard labeling procedures when they collect at unnamed sites. Locality data should be referred to nearby |  | | Journal (issue) | | or even a group of discrete mines but rather a region where, most commonly, crystals are taken from thousands... of the British conquest in the 1880s, the Mogok region, controlled in turns by Shan and Burmese, traded...Kathé, and King Nandabayin sought to reclaim the region, preferably without further warfare. Somehow it...25-carat round 30 brilliant which then went to an unnamed American buyer; its current whereabouts are unknown...from Mogok passed through the “Golden Triangle” region where opium poppies were grown in extensive fields |  | | Book | | Rare-earth minerals in the Alpine ar,d Subalpine region [Switzerland,Austria and Iti:Jy](by C. M. Gramaccioli)...Strontian crandallite from the Alto Benedeto pegmatite, Parai'ba, Brazil (by J.P. Cassedanne & L. Barreto)...21:409-412 --with J. P. Cassedanne: The Jaguara~u pegmatite, Minas Gerais, Brazil 25:165-170 9 AUTHOR/TITLE...Cassedanne) 8:382-387 Amethyst from the Thunder Bay region, Ontario (by D. G. Ellion) 13:67-70 New data on...23:209-225. 23:228 Al 'JAJ\ABO~OINA The Anjanabonoina pegmatite. Madagascar (by W. E. Wilson) 20:191-200 A.'\ |  | | Journal (issue) | | with tourmaline, have sustained the Golconda pegmatite field’s reputation as among the most important...districts in all of Brazil. INTRODUCTION The Golconda Pegmatite Field is a familiar name to mineral collectors...Consequently the authors (CC and AB) traveled to the region in June 2017 and March 2018 to tour the various...for mica produced in Minas Gerais. A rich, new pegmatite deposit in the Brazilian Golconda area, best known...Bellin (1755), including the region now known as the Eastern Pegmatite Province. Just below the center |  | | Journal (issue) | | been invented only 17 years earlier by Bartolome Medina at Pachuca, Mexico. The process involves the cold... (1968) Geologia y yacimientos minerales de la region de Potosf. Tomo II, Parte Minera. Geoboletin (Bolivia... (1968) Geologia y yacimientos minerales de la region de Potosf. Tomo I, Parte geologica, Geoboletin...volume 30, January-Fehruary, 1999 Figure 6. Titanite twin, 5.4 cm, from Androy, Madagascar. Seibel...brochantite inclusions recently mined in the Huancavelica region, Peru. The specimens consist of large gypsum crystals |  | | Journal (issue) | | e r a lo j g ic a l Volume Eight/Number Two PEGMATITE ISSUE #1 p u b lis h e r ls * h n Q n i. • ;...83 by R. Lasmanis The Clear Creek Pegmatite: A Rare Earth Pegmatite in Burnet County, Texas............. Iores K IO i DITOR Here it is: our first Pegmatite Issue! Actually this accumulation is a happy accident;...our file of articles I realized we had enough pegmatite-related papers to fill an issue. One advantage...a certain article. The article on the Harding pegmatite, for instance, may not cause “Vol. 8, no. 2!” |  | | Report (issue) | | - Photograph of monazite pocket in the Nambe pegmatite, Rio Arriba County . . . . . . 1 6 0 Figure 40...sandstone, vein-type, hydrothermal-vein, and pegmatite deposits scattered throughout the state (Fig....Triassic rocks of New Mexico.In the Great Plains region tke Chinle consists of three informal members;...Poleo Sandstone Lentil, Petrified Forest, and an unnamed siltstone member (O'Sullivan, 1974, 1977). These...RioGrandevalleyandinthe Mogollon unknown Plateau for region; most of the uranium content or radioactivity |  | | Report (issue) | | Helpful suggestions on field occurrences and pegmatite mineralogy were received horn Dr. James J. Norton...Topographic maps are available for all of the Black Hills region and may be purchased from the United States Geological...north side of the tunnel entrance to the Greene pegmatite three miles east-northeast of Pringle has been...southeast part of the Gayle (Dubuque)-Royal Flush pegmatite 5.9 miles southwest of Custer by Redden (5) p...schist exposed at the Beecher No. 3-Black Diamond pegmatite four and one-half miles south-southeast of Custer |  | | Journal (issue) | | described as a new species from the Viitaniemi pegmatite, Eräjärvi area, Orivesi, Etelä-Suomen Lääni, Finland...related to mckelveyite-(Y), ewaldite, and the two unnamed carbonates UK33A and UK37A from Mont Saint-Hilaire...Francon quarry. The other is in a nepheline syenite pegmatite in the Poudrette quarry at Mont Saint-Hilaire...associated with UK33A (Chao et al., 1990), an unnamed carbonate which may be the Cedominant analog of...Langesundfjords und des umgebenden LarvikitGebietes, Oslo-Region, Norwegen. Mineralien Welt, 7 (4), 21–100 (in German) |  | | Journal (issue) | | Stan Tourmaline) into a general San Diego County pegmatite collectic of nearly 200 superb specimens. Fine...garnets stood side-by-side with rare and exotic pegmatite specie It was widely acclaimed as the finest such...Tsavorite, Tanzania 63 Spessartine, Nigeria 63 Titanite, Pakistan 64 Forsterite, Pakistan 64 Clinohumite...was new to the country. A few new, or newish, pegmatite finds are worthy of note. Christian and Petra...black columbite (ferro- or mangano-?) from an unnamed pegmatite in the Vitoria da Conquista area, Bahia, Brazil |
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